eSIM evolves from connectivity to device trust; industrial IoT and automotive driving adoption at scale
Embedded SIM (eSIM) is transitioning beyond consumer connectivity into industrial infrastructure authentication and lifecycle management. G+D Mobile Security CEO Philipp Schulte told EE Times that the eSIM is becoming the "root of trust" for connected devices—a security anchor that authenticates devices, protects communications, and enables remote provisioning across industrial IoT, automotive, logistics, and smart city deployments. The automotive sector leads adoption, with most modern vehicles now running two eSIMs: one for diagnostics/OEM services and another for independent infotainment subscriptions.
Remote SIM provisioning, standardized by GSMA's SGP.32 specification for IoT, is the enabler. Manufacturers can now deploy identical hardware globally and push region-specific operator profiles remotely after deployment, reducing SKU complexity. Kigen CEO Vincent Korstanje highlighted automotive as the canonical case: vehicles built in one country can ship worldwide, receiving appropriate connectivity profiles on arrival. The same framework works for fleet logistics, utility meters, and railway infrastructure—devices with vastly different traffic patterns (vehicles: multi-gigabyte daily; meters: sparse fixed-interval) can all use the same provisioning backbone.
For production teams, eSIM shifts the SIM from a pre-manufacturing constraint to a post-deployment capability. This is significant for international rollouts: no more regional variants, no field replacement of SIM hardware, and lifecycle security updates across connected fleets. Industries managing thousands to millions of edge devices—from connected cars to smart meters to infrastructure sensors—now have a scalable, secure alternative to proprietary connectivity management, reducing vendor lock-in.